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AC & light circuit issue

Went over to my coach today to install the new aquapure water filter cartridge. I decided to exercise the aqua-hot, Gen-set, And roof AC. After running the AQ I shut it down & pulled shore power. Started the gen-set and changed mode to cool and then nothing. No matter the mode the only thing that would run was the fan on the bedroom floor under the TV. (AQ circuit?) So perhaps the thermostat is suspect.

At the same time I also noticed that I no longer had lights at the co-pilots map light, or under the forward pass side cabinets and lounge table lamp.

I'm sure the two things are unrelated though. All circuit breakers were fine and the thermostat has power. Any clues as to where the fuse is for the particular light circuit would be much appreciated as well as any info about the AC/Thermostat.

Thanks in advance
Jerry
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: AC & light circuit issue

Reply #1 –
The fuses are at the foot of the bed and both zones have to be set to ac
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: AC & light circuit issue

Reply #2 –
Thing is that I just had the AC running a few days ago. Nothing changed. I'll try again on Thursday with manual in hand. But since I have owned the coach I have only seen zone 1 displayed on the thermostat and both roof unit will turn on when set to cool.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: AC & light circuit issue

Reply #3 –
All zones have to be set to furnace or ac can not have one on furnace and the other on ac
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: AC & light circuit issue

Reply #4 –
Quote from: red tractor –
All zones have to be set to furnace or ac can not have one on furnace and the other on ac

If OEM. 

If you've upgraded the roof units and thermostat as we have to CCC2 you can have the zones set to separate modes and they will work as you have them set.  One of the great things about the new Dometic CCC2.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: AC & light circuit issue

Reply #5 –
Just to clarify, I have the 4 button CC t-stat. When I push the mode button the mode does change on the display. So the t-stat "looks" and "acts" like it always has. It's as if the signal is not going to the units as requested & the system is stuck on AQ furnace mode even when I change it to cool or heat strip or even circulation mode. The A/C circuit breaker did not trip.

As I said. The t-stat has always only indicated zone 1 and both A/C units have always came on when I select "cool" or "heat strip" via the t-stat. So from my prospective everything looks identical to how it's always looked and it worked fine just a few days ago. So I wonder if the output of the t-stat may have failed as the buttons are working as they should.

I will check on the conflicting zone thing in the AM to try and rule that out.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: AC & light circuit issue

Reply #6 –
Try this , remove the filter grills, unplug and replug all the phone type connectors and see if this helps.
The selected media item is not currently available.Bill&Doris 97 U270 36'
University of Parris Island Class of 66
Semper Fi  Build# 5174 MC#17094

Re: AC & light circuit issue

Reply #7 –
Went to the coach this morning and did a t-stat reset. Bingo! That did the trick.

Also, It's strange how one sometimes learns when they weren't trying to learn. Since buying the coach anytime I turned on the heat strip or the A/C while zone one was indicated, Both units would come on. Thus making me think that the coach only had one zone.

After the reset I set zone one to heat strip and only the front unit came on. After figuring out how to change zones I found that zone two was reset and was on "no mode" So now the coach climate control is working as it should.

Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: AC & light circuit issue

Reply #8 –
Biugdog, I too have the 4 button one and I may be wrong but I have not seen you mention using the top 2 buttons (at same time) to change the zones from 1 to 2 or vice versa.
I do not have AH so maybe things are a bit different, but try this anyway and see if zone 2 comes up so you can change it.???
JohnH
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.